560f61f91c2495de4b96db4ab88e7ee9f65e6ef85abcf556f481666fcd22b0d2

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 07:42

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General

Target

2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe
Size

205KB
MD5

5deb2d615fc333ad24c4599b940e2bbf
SHA1

ebbeae3d8d03b9b1e90a6ff5ab3228f99bfabea8
SHA256

560f61f91c2495de4b96db4ab88e7ee9f65e6ef85abcf556f481666fcd22b0d2
SHA512

5797582a0fb28c61bb3e426508e98959b72c2af73d53c1c8cf7fa0026bf69cb30b1e438ecf2242b263d6b8e0dd1d548d404c27ec2827808e15af11a49ba876a7
SSDEEP

3072:ZhpAyazIlyazTUzfhqu3q/vdqNyqDcWR5qnIBB8l7OUcUjjGoExmqbE:hZMazE5qMlNyY9kIBeJOWjj8vQ

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2180	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe
Token: SeDebugPrivilege	2180	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 2180	1692	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe	28
PID 1692 wrote to memory of 2180	1692	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe	28
PID 1692 wrote to memory of 2180	1692	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe	28
PID 1692 wrote to memory of 2180	1692	2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_5deb2d615fc333ad24c4599b940e2bbf_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mNl66nHixEajLVn.exe

Filesize
205KB

MD5
041271ad8be6a4f2a17490d2a2b6ff56

SHA1
8f290c87aa0e7704293908d46279667d3c63e9f5

SHA256
729dc450b7da0b9169ece90e4a53a552942f9a6b696af1ea45dd0811584c1b27

SHA512
78f89d23bc1f8a3c5583851dbba3e0b22de4fdff43cf7f89c3689cd997759ed64ed7c1c89add9ec97566ed25604f7d4d40078c9c5e6f788f1052dffd360c1801

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads